diff --git a/01 - JavaScript Drum Kit/index-START.html b/01 - JavaScript Drum Kit/index-START.html
index 4070d32767..b3113e579e 100644
--- a/01 - JavaScript Drum Kit/index-START.html
+++ b/01 - JavaScript Drum Kit/index-START.html
@@ -1,10 +1,12 @@
+
Codestin Search App
+
@@ -57,10 +59,28 @@
-
+ function playSample(key) {
+ let sample = document.querySelector(`audio[data-key="${key}"]`)
+ if (!sample) return;
+ sample.currentTime = 0;
+ sample.play();
+ }
+
+ function coolEffect(key) {
+ let selectedKey = document.querySelector(`div[data-key="${key}"]`);
+ if (!selectedKey) return;
+ selectedKey.classList.add("playing");
+ setTimeout(() => selectedKey.classList.remove('playing'), 200)
+ }
+
-
+
+